thorny issue/amn
a. + issue >>共 663 个
key 3.73%
major 3.06%
important 2.78%
political 2.71%
social 2.44%
sensitive 2.18%
economic 2.17%
contentious 1.91%
environmental 1.85%
new 1.79%
thorny 1.26%
thorny + n. >>共 130 个
issue 47.18%
question 11.18%
problem 10.47%
matter 1.65%
one 1.65%
subject 1.53%
dispute 1.41%
bush 1.29%
challenge 0.94%
dilemma 0.59%
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